Three men were killed in separate shootings across the city overnight, police said.

In the latest incident, a man was fatally wounded on Louisiana Avenue, near Linden Boulevard in East New York, Brooklyn at around 5:20 a.m. Saturday, cops said.

The victim, 37, was peppered with shots to the chest and groin, authorities said.

He was later pronounced dead at Brookdale Hospital, police said.

There are no arrests.

Several hours earlier, a 29-year-old man was shot in the chest inside the lobby of the Vernon Houses, a NYCHA building located between Marcus Garvey Boulevard and Lewis Avenue in Bedford-Stuyvesant, Brooklyn shortly before 2:45 a.m., authorities said.

The victim was later pronounced dead at Kings County Hospital, cops said.

The killer remains free.

Late Friday night, a man was gunned down in Harlem.

The victim, 29, was shot in the chest just before 11:30 p.m. in front of 303 West 128th St., police said.

EMS rushed the victim to Harlem Hospital, where he was pronounced dead.

There are no arrests.